75122797 has 4 divisors (see below), whose sum is σ = 75180736. Its totient is φ = 75064860.

The previous prime is 75122791. The next prime is 75122809. The reversal of 75122797 is 79722157.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75122797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75122791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26979 + ... + 29632.

It is an arithmetic number, because the mean of its divisors is an integer number (18795184).

Almost surely, 2^75122797 is an apocalyptic number.

It is an amenable number.

75122797 is a deficient number, since it is larger than the sum of its proper divisors (57939).

75122797 is a wasteful number, since it uses less digits than its factorization.

75122797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57938.

The product of its digits is 61740, while the sum is 40.

The square root of 75122797 is about 8667.3408263435. The cubic root of 75122797 is about 421.9463649331.

The spelling of 75122797 in words is "seventy-five million, one hundred twenty-two thousand, seven hundred ninety-seven".